Harry Mitchell Grabiner (1890–1948) was a dedicated American professional baseball executive whose career spanned over four decades. He is best remembered for his extensive tenure with the Chicago White Sox, where he rose through the ranks from a humble peanut vendor to become the franchise's first general manager, serving in that capacity from approximately 1915 through 1945.
Throughout his forty years with the White Sox, Grabiner worked closely with the Comiskey family, serving founding president Charles Comiskey, his son and successor J. Louis Comiskey, and J. Louis's widow, Grace Comiskey. Over his career with the club, he held several key administrative roles, including club secretary, business manager, and vice president, establishing himself as a foundational figure in the team's front-office operations.
Following his departure from the White Sox at the conclusion of the 1945 season, Grabiner partnered with Bill Veeck's ownership syndicate. He acquired a minority stake in the Cleveland Indians and served as the team's vice president from 1946 until his death in 1948.
